摘要
采用活性焦吸附处理精制棉生产废水,采用GC/MS和发光细菌法评价处理前后废水的水质变化。结果表明:当活性焦用量为100 g/L时,30℃下吸附180 min,COD去除率可达78.82%;废水在AC表面的吸附为吸热反应;经吸附处理后水样的急性毒性减弱85.20%。由于活性焦的生产成本低廉,活性焦吸附可用作生物法处理精制棉生产废水的预处理技术。
Activated coke( AC) was used to treat refined cotton production wastewater. The effect of AC dosage,initial concentration and temperature on COD removal was studied. Gas chromatography/mass spectroscopy( GC/MS)and bacterium bioluminescence assays were used to evaluate the change of wastewater quality before and after adsorption. The results showed that 78. 82% of COD could be removed at the AC dosage of 100 g/L after 180 min of adsorption at 30℃. The adsorption of organic pollutants on AC was endothermic. The acute toxicity was reduced by85. 20%,meaning that it might be helpful for further biological treatment of refined cotton production wastewater.Due to the low cost of AC,it maybe used to pretreat wastewater before biological treatment.
出处
《环境工程》
CAS
CSCD
北大核心
2013年第S1期76-79,96,共5页
Environmental Engineering
关键词
活性焦
精制棉生产废水
吸附
COD
急性毒性
activated coke
refined cotton production wastewater
adsorption
COD
acute toxicity
